General
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Target
2024-05-23_156c0c82cc6ec79b5e510a32ffb4c320_virlock
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Size
268KB
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Sample
240523-mjeycadb62
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MD5
156c0c82cc6ec79b5e510a32ffb4c320
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SHA1
3fba51da6a341e3d4d75342de7bf0765e2fe5fed
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SHA256
80363080de8ff10d5702532b3e1cb112b848f12cb21608fc4868cc2ae8a1303a
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SHA512
8d636830f305bba2c35b863a8138ac946be8f1278344c22c207fc1bb25391d13024379e7cca98c4848831be54de2ad05432d1cbf725e408db4cee9a2a2e76b58
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SSDEEP
6144:fI5amBA/dOi5QBF12xiBS8HP3MHlqngE:g5XB8D5QBF1fU8HfMFqgE
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-23_156c0c82cc6ec79b5e510a32ffb4c320_virlock.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-05-23_156c0c82cc6ec79b5e510a32ffb4c320_virlock.exe
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
2024-05-23_156c0c82cc6ec79b5e510a32ffb4c320_virlock
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Size
268KB
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MD5
156c0c82cc6ec79b5e510a32ffb4c320
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SHA1
3fba51da6a341e3d4d75342de7bf0765e2fe5fed
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SHA256
80363080de8ff10d5702532b3e1cb112b848f12cb21608fc4868cc2ae8a1303a
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SHA512
8d636830f305bba2c35b863a8138ac946be8f1278344c22c207fc1bb25391d13024379e7cca98c4848831be54de2ad05432d1cbf725e408db4cee9a2a2e76b58
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SSDEEP
6144:fI5amBA/dOi5QBF12xiBS8HP3MHlqngE:g5XB8D5QBF1fU8HfMFqgE
Score10/10-
Modifies visibility of file extensions in Explorer
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Renames multiple (65) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Drops file in System32 directory
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MITRE ATT&CK Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1